生铁既然是硬的,为什么又会脆呢?硬和脆不是相反吗?.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 15:13:14
![生铁既然是硬的,为什么又会脆呢?硬和脆不是相反吗?.](/uploads/image/z/9659103-15-3.jpg?t=%E7%94%9F%E9%93%81%E6%97%A2%E7%84%B6%E6%98%AF%E7%A1%AC%E7%9A%84%2C%E4%B8%BA%E4%BB%80%E4%B9%88%E5%8F%88%E4%BC%9A%E8%84%86%E5%91%A2%3F%E7%A1%AC%E5%92%8C%E8%84%86%E4%B8%8D%E6%98%AF%E7%9B%B8%E5%8F%8D%E5%90%97%3F.)
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